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SP1821のメーカーはSYNC POWERです、この部品の機能は「Four Channels Constant Current LED Driver」です。 |
部品番号 | SP1821 |
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部品説明 | Four Channels Constant Current LED Driver | ||
メーカ | SYNC POWER | ||
ロゴ | |||
このページの下部にプレビューとSP1821ダウンロード(pdfファイル)リンクがあります。 Total 7 pages
SP1821
Four Channels Constant Current LED Driver
DESCRIPTION
The SP1821 is a linear constant current driver designed
to drive multiple LEDs in series from a high input
voltage rail. The driver acts as a high current matched,
four-channel current source ensuring constant LED
current for a range of input voltages. The device can
drive up to 25mA load current per string with an
external resistor. The SP1821 can provide lowest cost
for various applications. Internal thermal protection
automatically turns off LED current to prevent
overheating. The dimming can be achieved by
controlling the ISET input or by feeding a PWM signal to
the EN pin. The device can be shut down by setting
Enable low.
APPLICATIONS
z MR16 and other decoration light source
z General reading lighting
z Display Backlight
z 12V Battery powered devices
FEATURES
z Low Cost LED Driver
z Constant Current Output
z Four Channels LED Driver Provides Matching
LED Current
z Low Quiescent Current
z Disconnects LEDs in Shutdown Mode
z Thermal Shut Down Protection
z Current Adjustable via external resistor
z Dimming Control thru either Enable or Iset
PIN CONFIGURATION(SOP – 8P)
PART MARKING
2010/04/10 Ver.2
Page 1
1 Page SP1821
Four Channels Constant Current LED Driver
BLOCK DIAGRAM
ABSOULTE MAXIMUM RATINGS
(TA=25℃ Unless otherwise specified)
Parameter
DC Supply Voltage
Output LED Current
Operating Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
Vcc
ILED
TOPR
TJ(Max)
TS
Value
12
25
-40~85
125
-65~150
Unit
V
mA
℃
℃
℃
The IC has a protection circuit against static electricity. Do not apply high static electricity or high voltage that
exceeds the performance of the protection circuit to the IC.
2010/04/10 Ver.2
Page 3
3Pages SP1821
Four Channels Constant Current LED Driver
SOP- 8 PACKAGE OUTLINE
2010/04/10 Ver.2
Page 6
6 Page | |||
ページ | 合計 : 7 ページ | ||
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PDF ダウンロード | [ SP1821 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
SP1820 | Four Channels Constant Current LED Driver | SYNC POWER |
SP1820S8RGB | Four Channels Constant Current LED Driver | SYNC POWER |
SP1821 | Four Channels Constant Current LED Driver | SYNC POWER |
SP1821S8RGB | Four Channels Constant Current LED Driver | SYNC POWER |